Recalls are imprecise and never fully successful, but how can they be improved? Jeff Gelles of the Philadelphia Inquirer took a look at the recall problem with snow throwers manufactured by a company called MTD, and sold under Yard Machines, Troy-Bilt, and Craftsman brands. The snow throwers used plastic wheel rims which sometimes exploded, so in 2006 the company cooperated with the Consumer Product Safety Commission (CPSC) and announced a recall.